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Full text of "The Morphology And Evolution Of The Apes And Man"

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THE NERVOUS  SYSTEM                  2*5
auricular nerve, which courses as in Man : and it divides into temporal, zygomatic, maxillary, buccal, :uandihr<lar and cervical branches. The temporal branches r^n upwards and are distributed as in Man. The zygomatic and maxillary nerves unite to form a trunk, which breaks up later into twigs to the facial muscles. The
and  cervical divisions are generally a* in Man.    In the
D.CP
FIG. 52.—The cervical (A) and thoracic parts of the vagiic and sympathetic nerves in the Chimpanzee ; G.N., ganglion nodc&iin. Other letters explained in text.
Gorilla the posterior auricular nerve gives off a branch to the external auditory meatus, and Eisler \44£) believes this takes the place of the auricular branch of the vagus. The styloid branch communicates with the glosso-pharyngeal ganglion, and a filament runs from the parent trunk to the cervical plexus. The trunk then separates into cervical and temporal divisions, whose